CN114846190A

CN114846190A - Washing machine for shoes and shoe washing method

Info

Publication number: CN114846190A
Application number: CN202080090434.9A
Authority: CN
Inventors: 八木文也
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd; Aqua Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd; Aqua Co Ltd
Priority date: 2019-12-24
Filing date: 2020-11-25
Publication date: 2022-08-02
Anticipated expiration: 2040-11-25
Also published as: CN114846190B; WO2021129290A1; JP2021101784A; JP7450873B2

Abstract

Provided is a technology capable of appropriately washing shoes without causing a large damage to the shoes. A washing machine (100) for shoes is provided with: an outer tub (2) for storing water; an inner tub (3) accommodated in the outer tub (2); an even number of independent buckets (4) accommodated in the inner bucket (3) and respectively accommodating a single shoe; and a drive unit (6) for rotating the independent tub (4).

Description

Washing machine for shoes and shoe washing method

Technical Field

The invention relates to a shoe washing machine for washing shoes and a shoe washing method.

Background

In recent years, running and walking have become popular due to the increase in health consciousness, and people wearing sports shoes have increased.

If the wearing frequency of the sports shoe is increased, the shoe is easily soiled. Since there are few home washing machines having a function of washing shoes such as sports shoes, most people wash their hands at home when the sports shoes are soiled. However, it takes time and effort to wash shoes such as sneakers at home.

Accordingly, more and more people use coin-freed laundromats to wash shoes such as sports shoes. That is, there are cases where a coin-operated laundry machine is provided with a shoe washing machine dedicated to washing shoes, and shoes such as sports shoes can be washed without trouble by using the shoe washing machine.

A conventional washing machine for shoes has a structure as shown in patent document 1, for example. The washing machine for shoes shown here includes an outer tub and an inner tub disposed inside the outer tub, and a rotating shaft is provided upright at the center of the bottom of the inner tub. A main brush projecting in the radial direction is provided on the circumferential surface of the rotating shaft. In addition, an auxiliary brush protruding upward is provided at the bottom side of the inner tub. Then, the shoes to be cleaned are put into the inner tub, and the surfaces of the shoes are wiped by the main brush and the auxiliary brush by rotating the rotating shaft.

It goes without saying that the shoes are divided into left and right (hereinafter, the left or right shoe is referred to as "single shoe", and the combination of the left single shoe and the right single shoe is referred to as "shoe"). Therefore, in the case of washing more than one shoe, an even number of individual shoes of more than 2 are put in the inner tub, and these individual shoes are washed at the same time.

In the structure described in patent document 1, when two or more shoes are put in the inner tub, the shoes rub against each other when the rotation shaft rotates, or the shoelace of one shoe is entangled with the other shoe, so that it is impossible to avoid damage to the one shoe. In addition, when the single shoes in the inner tub are in a mutually overlapped posture, the overlapped portion is not properly contacted with the brush, and the dirt is not sufficiently removed. That is, uneven cleaning may occur.

In the structure described in patent document 1, if the sole of the shoe put in the inner tub is oriented toward the peripheral wall of the inner tub, the water passage hole provided in the peripheral wall is closed by the sole of the shoe attached to the peripheral wall by centrifugal force when the inner tub is rotated at high speed to spin the shoe. Therefore, the water is not properly discharged from the inner tub, and uneven or insufficient dewatering occurs. In this case, additional dehydration must be performed after the single shoe placed in the inner tub is replaced in a posture in which the sole faces the central axis side of the inner tub.

Documents of the prior art

Patent document

Patent document 1: japanese Kokai publication Sho 62-120956

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made in view of the above circumstances, and an object thereof is to provide a technique capable of appropriately washing shoes without causing a large damage to the shoes.

Means for solving the problems

The present invention adopts the following method for achieving the object.

That is, the washing machine for shoes according to the present invention includes:

an outer tub capable of storing water;

an inner tub accommodated in the outer tub;

an even number of independent buckets accommodated in the inner bucket, each accommodating a single shoe; and

a driving part which rotates the independent barrel.

Preferably, the washing machine for shoes is characterized in that,

the independent barrel is provided with: and an outer brush formed by forming a plurality of hair-like members on an inner surface of a peripheral wall of the independent tub.

Preferably, the washing machine for shoes is characterized in that,

the independent barrel is provided with:

a hanging part which is arranged in the independent barrel and is used for hanging and supporting the single shoe accommodated in the independent barrel; and

an inner brush formed by forming a plurality of hair-like members on the surface of the hanging part,

the washing machine is configured to: when the independent barrel rotates around the central axis, the hanging part correspondingly ascends and descends.

Preferably, the washing machine for shoes is characterized in that,

the driving part can selectively perform:

an independent rotation mode in which an even number of the independent buckets are rotated about their central axes, respectively; and

and an integral rotation mode in which an even number of the independent buckets are rotated around a central axis of the inner bucket.

In addition, the invention also aims to provide a shoe washing method. That is, the shoe washing method is characterized by comprising:

a water supply process of storing water in the outer barrel;

a washing process of rotating an even number of independent buckets, each of which accommodates a single shoe, accommodated in an inner bucket, around a central axis thereof, respectively, the inner bucket being accommodated in the outer bucket;

a draining process of draining the water accumulated in the outer tub;

a first dehydration process of rotating an even number of the independent tubs around a central axis of the inner tub; and

and a second dehydration process of rotating the even number of independent buckets around their central axes, respectively.

Effects of the invention

According to the washing machine for the shoes, an even number of independent barrels are contained in the inner barrel, and a single shoe is contained in each independent barrel, so that the condition that the single shoes rub against each other or the shoelace of one single shoe is wound on other single shoes can not occur, and the single shoe is not easy to be damaged. In addition, the posture that the single shoes are mutually overlapped does not appear, so that the uneven washing and dehydration are not easy to generate. Therefore, the shoes can be properly washed without causing a large damage to the shoes.

In particular, when the independent tub includes the outer brush, for example, the outer side of the single shoe accommodated in the independent tub can be scrubbed by the outer brush by rotating the independent tub about its central axis. At this time, a single shoe is accommodated in each independent tub, so that a posture in which the single shoes are overlapped with each other does not occur, and the entire outer side of the single shoe is uniformly contacted with the outer brush. Therefore, dirt on the outer side of the single shoe can be sufficiently removed.

In particular, when the independent tub includes the hanging part, the single shoe is hung on the hanging part in advance, so that the single shoe can be prevented from leaning to the peripheral wall side of the independent tub. Therefore, the independent tub can be stably rotated. In addition, the water through holes formed in the peripheral wall of the separate tub are not blocked by the sole of the shoe alone (uneven or insufficient dehydration may occur). In addition, when the hanging part is arranged to be lifted when the independent barrel rotates around the central shaft, the inner side of the single shoe hung on the hanging part can be scrubbed by the inner brush arranged on the hanging part, and dirt on the inner side of the single shoe can be removed.

In particular, when the drive section can selectively execute the independent rotation mode and the entire rotation mode, the change in the operation can be increased. That is, in the case of performing the overall rotation mode, each individual bucket rotates with a large rotation radius, so that a large centrifugal force can be applied to a single shoe accommodated in the individual bucket. On the other hand, in the case of performing the independent rotation mode, each independent tub rotates at a relatively small rotation radius, but can rotate at a high speed accordingly. For example, the single shoe can be uniformly and sufficiently dehydrated by rotating the independent tub at a high speed in the independent rotation mode after the independent tub is rotated to blow off water contained in the single shoe to a certain extent in the entire rotation mode to reduce the weight of the shoe, and then further blowing off water remaining in the single shoe by rotating the independent tub at a high speed in the independent rotation mode. This eliminates the need for additional dehydration, eliminates the labor for additional dehydration, and shortens the time required for dehydration compared to the conventional dehydration.

In addition, according to the method for washing shoes of the invention, even number of independent barrels are accommodated in the inner barrel, and a single shoe is accommodated in each independent barrel, so that the condition that the single shoes rub against each other or the shoelace of a single shoe is wound on other single shoes does not occur, and the single shoe is not easy to be damaged. In addition, the posture that the single shoes are mutually overlapped can not be generated, so that uneven cleaning is not easy to generate. Therefore, the shoes can be properly washed without causing a large damage to the shoes. In the shoe washing method, when the shoe is dehydrated through the first dehydration step and the second dehydration step, the individual buckets rotate with a large rotation radius in the first dehydration step, so that a large centrifugal force acts on the individual shoes accommodated in the individual buckets, and water contained in the individual shoes is blown off. Since the weight of the shoe is reduced by the first dehydration process, the independent buckets can be rotated at a high speed in the second dehydration process, and the moisture remaining in the shoe can be further blown off by rotating the independent buckets at a high speed in the second dehydration process. By performing such two-stage dehydration, the single shoe can be uniformly and sufficiently dehydrated. This eliminates the need for additional dehydration, eliminates the labor for additional dehydration, and shortens the time required for dehydration compared to the conventional dehydration.

Drawings

Fig. 1 is a side view showing the whole of a shoe washing machine according to an embodiment.

Fig. 2 is a perspective view of the outer and inner tubs and four independent tubs accommodated therein, viewed from obliquely above.

Fig. 3 is a plan view of fig. 2 as viewed from above.

Fig. 4 is a side sectional view as viewed from the arrow a direction of fig. 3.

Fig. 5 is a side sectional view as viewed from the direction of arrow B in fig. 3.

Fig. 6 is a side sectional view as viewed from the arrow C direction of fig. 3.

Fig. 7 is a top view and a side sectional view of an individual bucket.

Fig. 8 is a side sectional view as viewed from the direction of arrow D of fig. 6.

Fig. 9 is a block diagram showing a hardware configuration of the control unit.

Fig. 10 is a perspective view of the brush hanging unit as viewed from obliquely above.

Fig. 11 is a top view and a side view of the hanging brush unit.

Fig. 12 is a diagram for explaining the structure of the connection portion.

Fig. 13 is a diagram for explaining a mode in which the connection portion transmits the rotation of the support portion to the brush portion.

Fig. 14 is a diagram showing a flow of shoe washing operation of the shoe washing machine.

Fig. 15 is a diagram showing a state in which the first output shaft does not rotate and the second output shaft rotates in reverse.

Fig. 16 is a diagram showing a state in which the first output shaft does not rotate but the second output shaft rotates in the forward direction.

Fig. 17 is a diagram showing a state in which the second output shaft does not rotate but the first output shaft rotates.

Description of the reference numerals

1: a box body; 2: an outer tub; 3: an inner barrel; 4: an independent barrel; 41: a water through hole; 42: a receiving frame portion; 43: external brushing; 431: a hair-like member; 5: a hanging brush unit; 51: a support portion; 52: a brush part; 521: a hanging part; 522 a slit; 523: inner brushing; 5231: a hair-like member; 53: a connecting portion; 531: a down slope portion; 532: an upper slope portion; 6: a drive section; 61: a motor; 62: a power distribution section; 621: a first output shaft; 622: a second output shaft; 63: an endless belt; 64: a gear unit; 641: a drive gear; 642: a driven gear; 643: a shaft portion; 7: a control unit; 100: a washing machine for shoes.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

< 1. Structure >

The shoe washing machine according to the embodiment is an apparatus for washing shoes, and is installed in a coin-operated laundry, for example. The structure of the shoe washing machine will be described with reference to fig. 1 to 6. Fig. 1 is a side view showing the whole of a shoe washing machine 100. Fig. 2 is a perspective view of the outer tub 2 and the inner tub 3 arranged in a sleeve shape and four independent tubs 4 accommodated therein, as viewed from obliquely above. Fig. 3 is a plan view of fig. 2 as viewed from above. Fig. 4 is a side sectional view as viewed from the arrow a direction of fig. 3. Fig. 5 is a side sectional view as viewed from the direction of arrow B in fig. 3. Fig. 6 is a side sectional view as viewed from the arrow C direction of fig. 3.

The washing machine 100 for shoes includes: a casing 1, an outer tub 2 accommodated in the casing 1, an inner tub 3 accommodated in the outer tub 2, an even number (four in the present embodiment) of independent tubs 4 accommodated in the inner tub 3, a brush hanging unit 5 provided inside each of the independent tubs 4, a driving part 6 for rotating the independent tubs 4, and a control part 7 for controlling the above parts.

(case 1)

The case 1 is a substantially rectangular parallelepiped member having a housing space formed therein, and is provided with a cover 11 for closing and opening an opening formed in an upper surface thereof. Further, an operation unit 12 for receiving various operations performed by the user is disposed in the casing 1.

(outer tub 2)

The outer tub 2 is a storage tub for storing water, and is elastically supported by a hanger (not shown) in the casing 1. The outer tub 2 is a cylindrical member having an open upper surface and a closed bottom surface, and is disposed in a posture in which a center axis L2 extends substantially vertically.

A water supply pipe 21, one end of which is connected to a water supply facility or the like outside, is disposed above the tub 2 so that the water supply inlet faces the opening of the tub 2. A water supply valve 211 is provided in a middle portion of the water supply pipe 21, and when the water supply valve 211 is in an open state, water supplied from an external water supply facility or the like flows into the inner tub 3 accommodated in the outer tub 2 through the water supply pipe 21. The water flowing into the inner tub 3 flows out to the outer tub 2 through a water passage hole (not shown) formed therein, and flows into the separate tub 4 through a water passage hole 41 formed in the separate tub 4.

Further, the other end of the drain pipe 22, one end of which is connected to an external drainage facility or the like, is connected to the bottom of the outer tub 2. A drain valve 221 is provided in a middle portion of the drain pipe 22, and when the drain valve 221 is in an open state, water in the outer tub 2 is drained through the drain pipe 22.

(inner barrel 3)

The inner tub 3 is a so-called dehydration tub, and is accommodated inside the outer tub 2 in a sleeve shape. The inner tub 3 is a cylindrical member having an open upper surface and a closed bottom surface, as in the outer tub 2, and is disposed in a posture in which the central axis L3 is coaxial with the central axis L2 of the outer tub 2. A plurality of water passage holes (not shown) are bored in the peripheral wall of the inner tub 3 over substantially the entire periphery.

(independent bucket 4)

The individual tub 4 will be described mainly with reference to fig. 3, 6, and 7. Fig. 7 is a plan view ((a) of fig. 7) and a side sectional view ((b) of fig. 7) of the independent tub 4.

The separate tub 4 is a tub for accommodating one single shoe S. Specifically, the separate tub 4 is a bottomed cylindrical member having an open upper surface, and is formed with a sufficient accommodation space therein for accommodating one common shoe S.

A plurality of independent buckets 4 are accommodated inside the inner bucket 3. Since the left and right shoes S are generally washed when washing the shoes, the number of the independent tub 4 accommodated in the inner tub 3 is even. As described later, the shoe-use washing machine 100 can be formed by a conventional washing machine, and the number of the independent tubs 4 is preferably two or four in consideration of the size of the inner tub of the conventional washing machine. In view of symmetry, the number of the electrodes is preferably four as compared with two. In the present embodiment, four independent buckets 4 are provided.

The four independent tubs 4 are independently provided in a separated manner from each other, and are arranged in a symmetrical manner with respect to the central axis L3 of the inner tub 3. Specifically, the respective independent tubs 4 are disposed at positions such that the central axes L4 thereof are located at the vertices of a square disposed concentrically with the central axis L3 of the inner tub 3 when viewed from above.

The peripheral wall of each of the independent buckets 4 is perforated with a plurality of water passage holes 41 over substantially the entire periphery. Further, a receiving frame 42 is formed on the lower surface of each individual tub 4. As described later, the tip end of the shaft portion 643, which projects from the cover portion 644 disposed inside the inner barrel 3 and on the bottom surface of the inner barrel 3, is housed in the housing frame portion 42, whereby the individual barrels 4 are supported at the positions inside the inner barrel 3 in a posture in which the central axis L4 extends substantially vertically.

A plurality of outer brushes 43 are provided on the inner surface of the peripheral wall of the independent tub 4 at substantially equal intervals in the circumferential direction. Each of the outer brushes 43 is a member for scrubbing the outside of a single shoe S accommodated in the separate tub 4, and is composed of a plurality of hair members 431 formed on the inner surface of the peripheral wall of the separate tub 4 at substantially equal intervals in the axial direction thereof. Each of the hair members 431 is formed of an elongated resilient member, and gently curves and extends from a base end portion fixed to the peripheral wall of the separate tub 4 in the normal direction toward a forward direction AR1 described later as it goes toward the base end portion.

(hanging brush unit 5)

The brush hanging unit 5 is provided inside each of the individual buckets 4, and is a member for locking the individual shoes S accommodated in the individual buckets and scrubbing the inner sides of the individual shoes S. The structure of the brush hanging unit 5 will be described later.

(drive section 6)

The driving unit 6 will be described with reference to fig. 1 and 6. The driving unit 6 is a mechanism for rotating the independent tub 4 (specifically, rotating the independent tub 4 about its central axis L4 or rotating the independent tub 4 together with the inner tub 3 about the central axis L3 of the inner tub 3), and includes a motor 61 and a power distribution unit 62 disposed below the inner tub 3. A first pulley 61 is attached to an output shaft of the motor 61, a second pulley 621 is attached to an input shaft of the power distribution portion 62, and an endless belt 63 is wound between the first pulley 611 and the second pulley 621. This enables transmission of motive power from the motor 61 to the power distribution unit 62.

The power distribution unit 62 includes a clutch mechanism that can selectively switch the output destination of the driving force input from the motor 61 via the

pulleys

611 and 621 to the first output shaft 621 or the second output shaft 622. Both

output shafts

621 and 622 are disposed coaxially with the central axis L3 of the inner tub 3, but the first output shaft 621 on the relatively outer side is connected to the center of the lower surface of the inner tub 3, and the second output shaft 622 on the relatively inner side is provided so as to penetrate through the bottom of the inner tub 3 to protrude into the inner tub 3, and is connected to the center of a drive gear 641 (described later) disposed therein.

The drive unit 6 further includes a gear unit 64. The gear unit 64 will be described with reference to fig. 6 and 8. Fig. 8 is a side sectional view as viewed from the direction of arrow D of fig. 6.

The gear unit 64 includes a drive gear 641 and a plurality of driven gears 642 provided around the drive gear 641 and engaged with the drive gear 641. However, the number of the driven gears 642 is the same as the number of the independent buckets 4, and is four in the present embodiment.

The driving gear 641 and the four driven gears 642 are disposed inside the inner tub 3 and on the bottom surface of the inner tub 3. The center axis of the drive shaft 641 is disposed concentrically with the center axis L3 of the inner tub 3, and the second output shaft 622 of the drive unit 6 is connected to the center axis. On the other hand, each driven gear 642 is provided corresponding to each individual tub 4. That is, the central axis of each driven gear 642 is disposed at a position overlapping the central axis L4 of any one of the independent buckets 4 as viewed from above. Each driven gear 642 is connected to the corresponding independent tub 4 via the shaft 643. The shaft portion 643 is a long member having a notched circular shape in which a part of a circle is notched along a chord, and has a lower end penetrating the center of the driven gear 642 and an upper end accommodated in an accommodation frame portion 42 (see fig. 7) having a notched circular shape formed on the lower surface of the independent tub 4. Thereby, the rotation of the driven gear 642 is transmitted to the corresponding independent tub 4.

The driving gear 641 and the four driven gears 642 are isolated from water inside the inner tub 3 by being accommodated inside the cover portion 644. Specifically, the cover portion 644 is a flat substantially cylindrical member having an open lower surface and a closed upper surface, and accommodates the drive gear 641 and the four driven gears therein, and is liquid-tightly connected to the bottom surface of the inner tub 3. Though through holes through which the shaft portions 643 connected to the driven gears 642 are inserted are formed in the cover portion 644, the through holes and the shaft portions 643 are hermetically sealed by the seal portions 645.

The operation of the driving unit 6 having such a configuration will be described. First, when the motor 61 is driven while the power distribution portion 62 switches the output target of the driving force to the first output shaft 621, the driving gear 641 connected to the second output shaft 622 does not rotate about its axis, and the inner tub 3 connected to the first output shaft 621 rotates about its central axis L3. Then, the four independent tubs 4 provided in the inner tub 3 rotate around the center axis L3 of the inner tub 3 (hereinafter, such a rotation mode is also referred to as "integral rotation mode").

On the other hand, when the motor 61 is driven while the power distribution portion 62 switches the output target of the driving force to the second output shaft 622, the inner tub 3 connected to the first output shaft 621 does not rotate, and the driving gear 641 connected to the second output shaft 622 rotates about the central axis thereof. Then, the four driven gears 642 provided to mesh with the drive gear 641 rotate in the same direction in synchronization with each other. Thereby, the four independent buckets 4 are rotated in the same direction in synchronization around the respective central axes L4 (hereinafter, such a rotation pattern is also referred to as an "independent rotation pattern").

In this way, by switching the output target of the driving force of the motor 61 between the first output shaft 621 and the second output shaft 622, the driving part 6 can selectively perform the overall rotation mode of rotating the four independent buckets 4 about the central axis L3 of the inner bucket 3 and the independent rotation mode of rotating the four independent buckets 4 about the central axes L4 thereof, respectively.

(control section 7)

The control unit 7 will be described with reference to fig. 1 and 9. Fig. 9 is a block diagram showing a hardware configuration of the control unit 7.

The control unit 7 is constituted by, for example, a microcomputer or the like, and is configured to include: a CPU71 as a central processing unit, a memory 72 including a volatile storage device such as a RAM, a storage unit 73 including a nonvolatile storage device such as a ROM, and a communication unit 74 as a network interface for communicating with an external device via a communication network such as the internet. The storage unit 73 stores a program for executing a series of operations in the footwear washing machine 100, various parameters for executing the program, control flags, and the like. The control unit 7 is connected to each unit (specifically, the water supply valve 211, the drain valve 221, the motor 61, the power distribution unit 62, and the like) provided in the footwear washing machine 100, and controls the units according to a program stored in the storage unit 73.

< 2. hanging brush unit 5 >

Next, the brush hanging unit 5 will be described with reference to fig. 10 to 12. Fig. 10 is a perspective view of the hanging brush unit 5 viewed from obliquely above. Fig. 11 is a plan view (fig. 11 (a)) and a side view (fig. 11 (b)) of the brush hanging unit 5. Fig. 12 is a diagram for explaining the structure of the connection portion 53.

The brush hanging unit 5 is provided inside each of the individual buckets 4, is a member for engaging a single shoe S accommodated in the individual bucket and scrubbing the inside of the single shoe S, and includes a support portion 51, a brush portion 52, and a connecting portion 53.

The support portion 51 is a member that supports the brush portion 52, and includes: a base portion 511 fixed to the inside of the independent tub 4 and fixed to the bottom surface of the independent tub 4; a shaft portion 512 erected from the base portion 511; and a disk-shaped supporting disk 513 provided at the upper end of the shaft 512. The base portion 511, the shaft portion 512, and the supporting disk 513 are disposed coaxially with the central axis L4 of all the independent buckets 4.

The brush portion 52 includes a substantially conical main body portion (hanging portion) 521. The hanging part 521 is a member for hanging and supporting a single shoe S accommodated in the independent tub 4. That is, the shoe S is supported by the inside of the separate tub 4 in a state where the hanging part 521 is inserted into the shoe S (see fig. 5). The hanging portion 521 is formed with a slit 522 which has a cross shape when viewed from above and reaches the vicinity of the bottom of the hanging portion 521 when viewed from the side. The four portions divided by the slits 522 are elastically deformed in a direction approaching the central axis, whereby the tip end side portion of the hook 521 is reduced in diameter.

A plurality of hair members 5231 are provided over the entire peripheral surface of the hanging portion 521. Each of the hair members 5231 is formed of an elongated resilient member and extends radially outward of the hanging portion 521. The hair-like members 5231 constitute an inner brush 523 for scrubbing the inner side of the single shoe S accommodated in the separate tub 4.

The connecting portion 53 is a portion connecting the support portion 51 and the brush portion 52, and includes a pair of

lower slope portions

531, 531 formed on the support portion 51 side and a pair of

upper slope portions

532, 532 formed on the brush portion 52 side.

The pair of

downward slope portions

531, 531 are provided on the upper surface of the supporting disk 513 so as to face each other across the center of the upper surface of the supporting disk 513. Each of the downward slope portions 531 is a protruding portion of a convex strip, and is formed along the peripheral edge of the supporting disk 513 as viewed from above. Each of the downward slope portions 531 includes: an inclined surface 531a that rises while drawing a gentle arc when viewed from the side; a top surface 531b connected to the inclined surface 531a and extending substantially horizontally; and a wall surface 531c connected to the top surface 531b and descending substantially vertically.

On the other hand, the pair of

upward slope portions

532 and 532 is provided on the bottom surface of the hook portion 521 so as to face each other with the center of the bottom surface of the hook portion 521 interposed therebetween. Each of the upper slope portions 532 has a shape that is inverted from the lower slope portion 531, and is provided at a position corresponding to the lower slope portion 531. That is, each upper slope portion 532 is a protruding portion of a convex strip, and is formed along the periphery of an imaginary circle defined by the bottom surface of the hanging portion 521 (i.e., an imaginary circle concentric with the bottom surface and having the same diameter as the supporting disk 513) when viewed from below. Each upper slope portion 532 includes: an inclined surface 532a which descends while drawing a gentle arc shape when viewed from the side; a top surface 532b connected to the inclined surface 532a and extending substantially horizontally; and a wall 532c which is continuous with the top 532b and rises substantially vertically.

The pair of

lower slope parts

531, 531 and the pair of

upper slope parts

532, 532 are received in the hood part 533, thereby being insulated from water in the inner tub 3. Specifically, the cover portion 533 is a member having an inverted circular cylindrical shape, and a cylindrical recess is formed on an upper surface thereof. The cover portion 533 is liquid-tightly connected to the lower surface of the hanging portion 521 while accommodating the pair of

lower slope portions

531, 531 and the pair of

upper slope portions

532, 532 in the recess.

As described above, the base portion 511 of the support portion 51 is fixed to the independent tub 4. Therefore, when the support portion 51 also rotates together with the independent tub 4 when the independent tub 4 rotates about the central axis L4 thereof, the rotation is transmitted to the brush portion 52 via the connecting portion 53. The mode of this transfer will be described with reference to fig. 13. Fig. 13 is a diagram for explaining a mode in which the connection portion transmits the rotational operation of support portion 51 to brush portion 52.

For example, as shown in fig. 13 (a), the support portion 51 is rotated in the positive direction AR1 from a state in which the inclined surface 531a of the lower slope portion 531 approaches the inclined surface 532a of the upper slope portion 532. Here, the positive direction AR1 is a direction from the end of the downward slope portion 531 of the support portion 51 on the side of the wall surface 531c toward the end on the side of the inclined surface 531 a. The direction opposite to the forward direction AR1 is referred to as a reverse direction AR 2.

In this case, first, the inclined surface 531a of the lower slope portion 531 comes into contact with the inclined surface 532a of the upper slope portion 532. Since a force for inhibiting rotation acts on the brush 52 due to resistance from water received by the brush 52 itself or the single shoe S suspended from the brush 52, a delay in rotation occurs between the brush 52 and the support portion 51. That is, brush 52 rotates in reverse direction AR2 with respect to support 51. Here, since the brush portion 52 and the support portion 51 are in contact with each other via the

inclined surfaces

532a and 531a, the brush portion 52 moves relative to the support portion 51 while sliding the inclined surface 532a of the upper slope portion 532 along the inclined surface 531a of the lower slope portion 531. That is, brush 52 moves vertically upward while rotating relative to support 51 in reverse direction AR 2.

When the support portion 51 continues to rotate, as shown in fig. 13 (b), the top surface 531b of the lower slope portion 531 comes into contact with the top surface 532b of the upper slope portion 532. Then, the brush 52 rotates relative to the support 51 in the reverse direction AR2 while sliding the top surface 532b of the upper slope portion 532 along the top surface 531b of the lower slope portion 531.

As the support portion 51 continues to rotate further, each upper slope portion 532 formed in the brush portion 52 descends between the pair of

lower slope portions

531, 531 formed in the support portion 51. That is, brush 52 moves vertically downward with respect to support 51. Thus, the state shown in fig. 13 (a) is returned.

In this way, when support portion 51 rotates in positive direction AR1, brush portion 52 performs one lifting operation while rotating 180 ° relative to support portion 51. That is, while support unit 51 rotates in positive direction AR1, brush unit 52 repeats the up-and-down operation. In this way, the connection portion 53 converts the rotation of the support portion 51 rotating in the positive direction AR1 into the lifting and lowering operation of the brush portion 52 and transmits the converted operation.

On the other hand, support portion 51 is rotated in reverse direction AR2 from the state shown in fig. 13 (a). In this case, the wall surface 531c of the lower slope portion 531 is in a state of abutting against the wall surface 532c of the upper slope portion 532. As described above, since a force that resists rotation of brush portion 52 acts on brush portion 52, support portion 51 receives a resistance force from brush portion 52 that resists rotation in reverse direction AR2, but when support portion 51 is rotated in reverse direction AR2 against the resistance force, brush portion 52 rotates in reverse direction AR2 integrally with support portion 51.

When support portion 51 rotates in reverse direction AR2, brush portion 52 rotates in reverse direction AR2 integrally with support portion 51. That is, the connection portion 53 directly transmits the rotation of the support portion 51 rotating in the reverse direction AR2 to the brush portion 52.

< 3. action >

Next, the shoe washing operation of the shoe washing machine 100 will be described with reference to fig. 1 to 13 and 14 to 17. Fig. 14 is a diagram showing a flow of this operation. Fig. 15 is a diagram showing a state in which the first output shaft 621 does not rotate while the second output shaft 622 rotates in the reverse direction AR 2. Fig. 16 is a diagram showing a state in which the first output shaft 621 does not rotate and the second output shaft 622 rotates in the positive direction AR 1. Fig. 17 is a diagram showing a state in which second output shaft 622 does not rotate but first output shaft 621 rotates.

First, the user opens the cover 11 of the case 1 and puts a single shoe S on the left of the shoe to be washed into a separate tub 4. At this time, the user inserts the brush part 52 of the brush hanging unit 5 provided in the separate tub 4 into a single shoe S, and hangs the single shoe S on the brush part 52. Likewise, the user places the single shoe S on the right into the other independent bucket 4. The shoe washing machine 100 includes four independent tubs 4, so that two pairs of shoes can be washed at a time, but when only one pair of shoes is washed, it is preferable that not the adjacent independent tubs 4 but the respective shoes S are put in the opposite independent tubs 4 in view of symmetry. When all the shoes S to be washed are put in the separate tub 4, the user closes the lid 11 of the cabinet 1, puts coins in, and the like, and inputs an instruction to start washing via the operation unit 12.

When an instruction to start washing is input via the operation unit 12, a series of operations for washing shoes are started. The series of operations described below are executed by the control unit 7 reading the program (and parameters and the like corresponding to the program) stored in the storage unit 73 and controlling each unit included in the footwear washing machine 100 in accordance with the program.

Step S1: water supply process

First, after locking the lid 11, the control unit 7 opens the water supply valve 211. Then, water supplied from an external water supply device or the like flows into the inner tub 3 accommodated in the outer tub 2 through the water supply pipe 21. The water flowing into the inner tub 3 flows out into the outer tub 2 through a water passage hole (not shown) formed in the inner tub 3 to be stored in the outer tub 2, and flows into the independent tub 4 through a water passage hole 41 formed in the independent tub 4. When the water level in the tub 2 reaches a predetermined level after a predetermined time (e.g., 1 minute) has elapsed from the start of water supply, the controller 7 closes the water supply valve 211 to stop the water supply.

Step S2: cleaning process

Next, the control unit 7 drives the motor 61 with the output target of the power split unit 62 set as the second output shaft 622. At this time, the rotation direction of the output shaft of the motor 61 is a direction in which each driven gear 642 rotates in the positive direction AR 1. Here, since each of the driven gear 642 and the drive gear 641 is an external gear, the output shaft of the motor 61 rotates in the reverse direction AR2 in order to rotate the driven gear 642 in the forward direction AR 1. The rotation speed at this time is preferably 720rpm, for example.

At this time, the driving force of the motor 61 is not transmitted to the first output shaft 621 but transmitted only to the second output shaft 622. Therefore, as shown in fig. 15, in a state where the inner tub 3 is not rotated but is kept stationary, the drive gear 641 rotates in the reverse direction AR 2. Then, the four driven gears 642 provided in mesh with the drive gear 641 rotate in the positive direction AR1 in synchronization, and the four independent buckets 4 rotate in the positive direction AR1 in synchronization about the respective center axes L4 (independent rotation mode). Thereby, the outer side (outer surface) of the single shoe S accommodated in the separate tub 4 is scrubbed by the outer brush 43 formed at the separate tub 4.

When the support portion 51 of the brush hanging unit 5 provided in each of the independent buckets 4 rotates in the positive direction AR1 integrally with the independent bucket 4 when the independent bucket 4 rotates in the positive direction AR1 about the center axis L4 thereof, the connecting portion 53 of the brush hanging unit 5 converts the rotation into the lifter of the brush portion 52 and transmits the rotation when the support portion 51 rotates in the positive direction AR 1. Therefore, when each of the individual buckets 4 rotates in the positive direction AR1 about the center axis L4 thereof, the brush unit 52 moves up and down in accordance therewith. At this time, the outer surface of the shoe S contacts the outer brush 43, and the shoe S is prevented from moving up and down, and thus does not follow the brush unit 52. That is, the brush part 52 moves up and down relative to the single shoe S, and thereby the inner side (inner surface) of the single shoe S is scrubbed by the inner brush 523 formed at the brush part 52.

Step S3: drainage and dewatering process

When a predetermined time (for example, 10 minutes) has elapsed after the start of the washing process in step S2, the control unit 7 opens the drain valve 221 to discharge the water stored in the outer tub 2. The control unit 7 switches the rotation direction from the reverse direction AR2 to the forward direction AR1 while maintaining the output target of the power split unit 62 as the second output shaft 622, and drives the motor 61. The rotation speed at this time is preferably about 720rpm, for example.

At this time, the driving force of the motor 61 is not transmitted to the first output shaft 621 but is transmitted only to the second output shaft 622. Therefore, as shown in fig. 16, in a state where the inner tub 3 is not rotated but is kept stationary, the drive gear 641 rotates in the positive direction AR 1. Then, the four driven gears 642 provided in mesh with the drive gear 641 rotate in the reverse direction AR2 in synchronization with each other, and the four independent buckets 4 rotate in the reverse direction AR2 in synchronization with each other about the respective center axes L4 (independent rotation mode).

When support portion 51 of brush hanging unit 5 provided in each of independent buckets 4 rotates in reverse direction AR2 about central axis L4 thereof, and rotates in reverse direction AR2 integrally with independent bucket 4, coupling portion 53 of brush hanging unit 5 directly transmits the rotation to brush portion 52 when support portion 51 rotates in reverse direction AR 2. That is, when each individual tub 4 rotates in the reverse direction AR2 about its central axis L4, brush 52 rotates in the reverse direction AR2 integrally with support 51 (even individual tub 4). The outer surface of the single shoe S is in contact with the outer brush 43 and the inner surface thereof is in contact with the inner brush 52, and when the outer brush 43 and the inner brush 523 rotate around the central axis L4 of the separate tub 4 in synchronization, the single shoe S is rotated around the central axis L4 of the separate tub 4 with the rotation of both

brush parts

43, 523. Thus, the moisture contained in the individual shoe S is thrown off and discharged from the water passage hole 41, and the individual shoe S is dehydrated.

Step S4: water supply process

When a predetermined time (for example, 2 minutes 22 seconds) has elapsed after the start of the draining and dehydrating process in step S3, controller 7 opens water supply valve 211 to start water supply to tub 2.

Step S5: rinsing process

When the water level in the tub 2 reaches a predetermined height after a predetermined time (e.g., 1 minute) has elapsed after the start of the water supply, the controller 7 maintains the water supply valve 211 in the open state for a predetermined time (e.g., 30 seconds), and performs the water filling rinsing of the individual shoes S in the individual tub 4.

Step S6: first dehydration process

When a predetermined time (for example, 1 minute and 45 seconds) has elapsed after the start of the rinsing process in step S5, the control unit 7 opens the drain valve 221 to discharge the water stored in the tub 2, and drives the motor 61 with the output target of the power distribution unit 62 set as the first output shaft 621. The rotation speed in this case is preferably 720rpm, for example.

At this time, the driving force of the motor 61 is not transmitted to the second output shaft 622 but is transmitted only to the first output shaft 621. Accordingly, as shown in fig. 17, the driving gear 641 does not rotate about its central axis, and the inner tub 3 rotates about its central axis L3. Then, the four independent tubs 4 provided in the inner tub 3 rotate around the central axis L3 of the inner tub 3 without rotating around their central axis L4 (integral rotation mode). Accordingly, the individual shoes S accommodated in the individual tub 4 also rotate around the central axis L4, and moisture contained in the individual shoes S is thrown off by centrifugal force and discharged from the water passage holes 41, so that the individual shoes S are dehydrated.

Step S7: second dehydration Process

When a predetermined time (for example, 2 minutes and 30 seconds) has elapsed after the first dehydration process of step S6 is started and the shoe S is dehydrated to a certain extent, the control unit 7 switches the output destination of the power distribution unit 62 from the first output shaft 621 to the second output shaft 622 to drive the motor 61. At this time, the rotation direction of the output shaft of the motor 61 is a direction in which each driven gear 642 is rotated in the reverse direction AR2 (i.e., the forward direction AR 1). Further, the rotation speed at this time is higher than that of the first dehydration process. The rotation speed is preferably about 1080rpm, for example.

At this time, the driving force of the motor 61 is not transmitted to the first output shaft 621 but transmitted only to the second output shaft 622. Therefore, as shown in fig. 16, in a state where the inner tub 3 is not rotated but is kept stationary, the drive gear 641 rotates at a high speed in the positive direction AR 1. Then, the four driven gears 642 provided in mesh with the drive gear 641 rotate at high speed in the reverse direction AR2 in synchronization therewith, and the four independent buckets 4 rotate at high speed in the reverse direction AR2 in synchronization therewith about the respective central axes L4 (independent rotation mode).

As described above, when each individual tub 4 rotates in the reverse direction AR2 about its central axis L4, brush 52 rotates in the reverse direction AR2 integrally with support 51 (even individual tub 4). Therefore, the single shoe S is rotated at a high speed around the center axis L4 of the separate tub 4 with the rotation of the outer brush 43 and the inner brush 523. Accordingly, the moisture remaining in the individual shoes S is sufficiently thrown off and discharged through the water passage holes 41, and the individual shoes S are finally dehydrated.

When a predetermined time (for example, 1 minute and 30 seconds) has elapsed after the second dehydration process of step S7 is started, the control unit 7 stops the driving of the motor 61. Then, when the rotation of each individual tub 4 is stopped, the locking of the cover 11 is released. Thereby, a series of operations for washing shoes is finished.

< 4. Effect >

The shoe washing machine 100 of the above embodiment includes: an outer tub 2 for storing water; an inner tub 3 (large cylinder) accommodated in the outer tub 2; an even number of independent barrels 4 (small cylinders) accommodated in the inner barrel 3 and accommodating one single shoe S, respectively; and a driving part 6 for rotating the independent barrel 4.

According to the structure, even number of independent barrels 4 are contained in the inner barrel 3, and one single shoe S is contained in each independent barrel 4, so that the condition that the single shoes S rub against each other or the shoelace of one single shoe S is wound on other single shoes S does not occur, and the single shoe S is not easy to be damaged. In addition, since the shoes S do not overlap each other, unevenness in washing and dehydration is not likely to occur. Therefore, the shoes can be properly washed without causing a large damage to the shoes.

The shoe washing machine 100 of the above embodiment includes the independent tub 4 and the outer brush 43 in which the plurality of hair members 431 are formed on the inner surface of the peripheral wall of the independent tub 4.

According to this structure, the separate tub 4 is rotated about its central axis L4, thereby enabling the outer side of the single shoe S received in the separate tub to be scrubbed by the outer brush 43. At this time, since one shoe S is accommodated in each independent tub 4, the outer brush 43 can be brought into contact with the entire outer side of the shoe S without any dead space, without causing a posture in which the shoes S are overlapped with each other. Therefore, dirt on the outer side of the single shoe S can be sufficiently removed.

In addition, the shoe washing machine 100 of the above embodiment is configured such that the independent tub 4 includes: a hanging part 521 which is disposed inside the independent tub 4 and supports the single shoe S accommodated therein by hanging it; and an inner brush 523 in which a plurality of hair-like members 5231 are formed on the surface of the hanging part 521, and when the independent tub 4 rotates around the central axis L4 thereof, the hanging part 521 moves up and down accordingly.

According to this configuration, by hanging the individual shoes S on the hanging portion 521 in advance, the individual shoes S can be prevented from leaning toward the peripheral wall side of the independent tub 4. Therefore, the independent tub 4 can be stably rotated. In addition, the water passage holes 41 formed in the peripheral wall of the separate tub 4 are not closed (even uneven or insufficient dehydration occurs) by the sole of the single shoe S. Since the hanging part 521 is lifted and lowered when the independent tub 4 is rotated about the central axis L4 thereof, the inner side of the single shoe S hung on the hanging part 521 can be scrubbed by the inner brush 523 provided to the hanging part 521, and dirt on the inner side of the single shoe S can be removed.

Further, in the footwear washing machine 100 of the above embodiment, the driving part 6 can selectively perform the independent rotation mode in which the even number of independent tubs 4 are respectively rotated around the central axes L4 thereof and the overall rotation mode in which the even number of independent tubs 4 are rotated around the central axis L3 of the inner tub 3.

With this configuration, the change in operation can be increased. That is, in the case of performing the overall rotation mode, each individual bucket 4 rotates with a large rotation radius, so that a large centrifugal force can be applied to the individual shoes S accommodated in the individual bucket. On the other hand, in the case of performing the independent rotation mode, each independent tub 4 rotates at a relatively small rotation radius, but can rotate at a high speed accordingly. Therefore, as in the above-described embodiment, the single shoe S can be uniformly and sufficiently dehydrated by performing the two-stage dehydration in such a manner that the single shoe S is largely rotated in the entire rotation mode to blow off water contained in the single shoe S to a certain extent to reduce the weight thereof, and then the single bucket 4 is rotated at a high speed in the independent rotation mode to further blow off moisture remaining in the single shoe S. This eliminates the need for additional dehydration, eliminates the labor for additional dehydration, and shortens the time required for dehydration compared to the conventional dehydration.

Further, the shoe washing machine 100 according to the above embodiment includes the power distribution unit 62, and thus the structure is simplified because the independent rotation mode and the entire rotation mode are realized by one motor 61.

Further, since the footwear washing machine 100 according to the above-described embodiment includes the gear unit 64, the plurality of independent tubs 4 are rotated by one motor 61, and thus the number of components is reduced and the structure is simplified.

In addition, in the shoe washing machine 100 according to the above embodiment, the brush hanging unit 5 includes the connection part 53 that switches the movement mode of the brush part 52 according to the rotation direction of the independent tub 4. Thus, the brush 52 can be caused to function as an element for cleaning the inner surface of the shoe S in the cleaning process of step S2, and the brush 52 can be caused to function as an element for promoting the rotation of the shoe S in the drainage and dehydration process of step S3 and the second dehydration process of step S7.

The shoe washing machine 100 according to the above embodiment can be obtained by modifying an existing washing machine (that is, an existing washing machine including a casing, an outer tub supported inside the casing, an inner tub provided inside the outer tub, a pulsator provided in the inner tub, a driving unit for selectively rotating a first output shaft connected to the inner tub and a second output shaft connected to the pulsator), and the like. That is, in order to obtain the shoe washing machine 100 from such a conventional washing machine, the pulsator must be detached from the conventional washing machine. Then, the gear unit 64 is disposed at a portion where the pulsator is disposed, and the drive gear 641 is connected to the second output shaft to which the pulsator is coupled. Further, the independent tub 4 is connected to an upper end of a shaft portion 643 connected to each driven gear 642 provided to mesh with the drive gear 641. Thus, the shoe washing machine 100 is obtained. As described above, the shoe washing machine 100 can be easily obtained from the conventional washing machine by directly using the components mounted on the conventional washing machine as the casing 1, the outer tub 2, the inner tub 3, and the driving unit 6. For example, if the gear unit 64 and a set of independent tubs 4 are unitized in advance, the modification can be made more simply by merely exchanging them with the pulsator of an existing washing machine. However, the shoe washing machine 100 may be manufactured from the beginning by using a dedicated component without modifying the existing washing machine.

Further, the shoe washing method of the above embodiment includes: a water supply process (step S1) of storing water in the tub 2; a washing process (step S2) of rotating an even number of independent individual buckets 4, each containing a single shoe S, contained in an inner bucket 3, respectively, around a central axis L4 thereof, the inner bucket 3 being contained in an outer bucket 2; a draining process (step S3) of draining the water accumulated in the tub 2; a first dehydrating process (step S6) of rotating the even number of independent tubs 4 around the central axis L3 of the inner tub 3; and a second dehydration process (step S7) of rotating the even number of independent buckets 4 about their central axes L4, respectively.

According to this structure, since the even number of independent individual buckets 4 are accommodated in the inner bucket 3 and one single shoe S is accommodated in each of the independent buckets 4, the shoes can be properly washed without causing a large damage to the shoes. In addition, in this configuration, when the shoe is dehydrated through the two stages of the first dehydration process and the second dehydration process, since each of the individual buckets 4 rotates with a large radius of rotation in the first dehydration process, a large centrifugal force is applied to the individual shoes S accommodated in the individual bucket, and water contained in the individual shoes S can be blown off. Since the weight of the individual shoes S is reduced by the first dehydration process, the individual tubs 4 can be rotated at a high speed in the second dehydration process, and the moisture remaining in the individual shoes S can be further blown off by rotating the individual tubs 4 at a high speed in the second dehydration process. By performing the dehydration in two stages, the single shoe S can be uniformly and sufficiently dehydrated. This eliminates the need for additional dehydration, eliminates the labor for additional dehydration, and shortens the time required for dehydration compared to the conventional dehydration.

< 5. modification

In the above embodiment, the number of the independent tubs 4 provided in the inner tub 3 is four, but the number of the independent tubs 4 is not limited thereto. However, as described above, since the shoes are used as a pair of shoes, the number of the independent buckets 4 is preferably even. Regardless of the number of the individual barrels 4, it is preferable that the individual barrels 4 are arranged symmetrically with respect to the central axis of the inner barrel 3. For example, when two independent tubs 4 are provided, each independent tub 4 is preferably arranged such that the center of a line segment connecting the central axes L4 coincides with the central axis L3 of the inner tub 3, as viewed from above. For example, when n (where n is an integer of 3 or more) independent tubs 4 are provided, each independent tub 4 is preferably disposed at a position where the central axis L4 is at the apex of a regular n-shape disposed concentrically with the central axis L3 of the inner tub 3 when viewed from above. Further, the number of the independent tub 4 is preferably two or four in consideration of the size of the inner tub of the conventional washing machine, but in the case of a smaller independent tub 4 dedicated to washing children's shoes, for example, six or more independent tubs 4 may be provided.

In the above embodiment, the user may input an instruction to wash the tub via the operation unit 12 before putting shoes to be washed into the shoe washing machine 100. When receiving the instruction, the control unit 7 performs the tub cleaning. Specifically, the controller 7 opens the water supply valve 211 to supply water to the outer tub 2 and wash the inner tub 3 and the independent tub 4. When the washing is performed for a predetermined time, the controller 7 opens the drain valve 221 to discharge the water in the tub 2. After the washing of the tub is completed, the user may put shoes to be washed into the shoe washing machine 100 and input an instruction to start washing via the operation unit 12.

In the shoe washing machine 100 of the above embodiment, the outer brush 43 may be omitted. The brush hanging unit 5 may be omitted. In the brush hanging unit 5, the inner brush 523 may be omitted. When the inner brush 523 is omitted, the connection portion 53 may not transmit the rotation of the support portion 51 rotating in the positive direction AR1 to the raising and lowering operation of the brush portion 52.

The shoe washing machine 100 of the above embodiment includes the power distribution unit 62, and thus the independent rotation mode and the entire rotation mode are realized by one motor 61, but a motor dedicated to each rotation mode may be provided without providing the power distribution unit 62.

In the above-described embodiment, the central axes L2, L3, and L4 of the outer tub 2, the inner tub 3, and the individual tub 4 are all arranged in the vertical direction, but these central axes may be arranged in an oblique direction or in the horizontal direction.

In the above-described embodiment, the shoe washing machine 100 is installed in a coin-operated laundry, but it is needless to say that the shoe washing machine 100 may be installed outside the coin-operated laundry (for example, home, factory, commercial facility, etc.).

Other configurations can be variously modified within a range not departing from the gist of the present invention. It is to be understood that the structures illustrated in the respective embodiments may be partially combined with each other.

Claims

A washing machine for shoes is characterized by comprising:

an outer tub capable of storing water;

an inner tub accommodated in the outer tub;

an even number of independent buckets accommodated in the inner bucket, each accommodating a single shoe; and

a driving part which rotates the independent barrel.
The washing machine for shoes according to claim 1,

the independent barrel is provided with: and an outer brush formed by forming a plurality of hair-like members on an inner surface of a peripheral wall of the independent tub.
Washing machine for shoes according to claim 1 or 2,

the independent barrel is provided with:

a hanging part which is arranged in the independent barrel and is used for hanging and supporting the single shoe accommodated in the independent barrel; and

an inner brush formed by forming a plurality of hair-like members on the surface of the hanging part,

the washing machine for shoes is configured to: when the independent barrel rotates around the central axis, the hanging part correspondingly ascends and descends.
A washing machine for shoes according to any one of claims 1 to 3,

the driving part can selectively perform:

an independent rotation mode in which an even number of the independent buckets are rotated about their central axes, respectively; and

and an integral rotation mode in which an even number of the independent buckets are rotated around a central axis of the inner bucket.
A method for washing shoes, characterized by comprising:

a water supply process of storing water in the outer barrel;

a washing process of rotating an even number of independent buckets, each of which accommodates a single shoe, accommodated in an inner bucket, around a central axis thereof, respectively, the inner bucket being accommodated in the outer bucket;

a draining process of draining the water accumulated in the outer tub;

a first dehydration process of rotating an even number of the independent buckets around a central axis of the inner bucket; and

and a second dehydration process of rotating the even number of independent buckets around their central axes, respectively.